?+H2SO4=Al2(SO4)3+? LiO2+?=LiNO3+? ?+H3PO4=Zn3(PO4)2+H2O Zn+?=Zn +H2O

Question

?+H2SO4=Al2(SO4)3+?
LiO2+?=LiNO3+?
?+H3PO4=Zn3(PO4)2+H2O
Zn+?=Zn +H2O

Comments

последняя реакция как это?

Answer 1

1) Al2O3+3H2SO4=Al2 (SO4)3+3H2O
2)LiO2+2HNO3=2LiNO3+H2O
3)3ZnO+2H3PO4=Zn3 (PO4)2+3H2O